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Updated cmq equation #621

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Updated cmq equation #621

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7 changes: 4 additions & 3 deletions .../Flight_Dynamics/Dynamic_Stability/Full_Linearized_Equations/Supporting_Functions/cm_q.py
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@
# ----------------------------------------------------------------------

## @ingroup Methods-Flight_Dynamics-Dynamic_Stability-Full_Linearized_Equations-Supporting_Functions
def cm_q(cm_i, l_t, mac):
def cm_q(cla, vht, l_t, mac):
""" This calculates the damping in pitch coefficient

Assumptions:
Expand All @@ -30,6 +30,7 @@ def cm_q(cm_i, l_t, mac):
Properties Used:
N/A
"""
cm_q = 2. * 1.1 * cm_i * l_t / mac
cm_q = -2. * l_t / mac * vht * cla
cm_q = cm_q * 1.1 # factor to account for fuselage contribution

return cm_q
return cm_q